|Birth Place||Istanbul, Turkey, Turkey|
|Age||92 YEARS OLD|
|Alma mater||American College for Girls|
|Known for||Director of Koç Holding|
|Spouse(s)||Nusret Arsel (deceased)|
|Parent(s)||Vehbi Koç Sadberk Koç|
|Relatives||Rahmi Koç (brother) Sevgi Gönül (sister) Suna Kıraç (sister) Ali Yıldırım Koç (nephew) Mustafa Vehbi Koç (nephew) Mehmet Ömer Koç (nephew)|
She was born Semahat Sevim Koç in Ankara in 1928, the eldest child of Vehbi Koç (1901-1996).
Her husband Nusret Arsel died in January 2014. They had no children. She lives in Istanbul.
As of November 2015, Forbes estimated her net worth at US$2.4 billion.